Update pexels_api.py

pexels_api.py

@@ -5,12 +5,20 @@ def search_pexels(query, num_results=5):
     api_key = os.getenv("PEXELS_API_KEY")
     if not api_key:
         raise ValueError("La variable de entorno PEXELS_API_KEY no está configurada.")
+
+    if not query.strip():
+        raise ValueError("La consulta no puede estar vacía.")
+
     url = "https://api.pexels.com/videos/search"
     headers = {"Authorization": api_key}
     params = {"query": query, "per_page": num_results}
     response = requests.get(url, headers=headers, params=params)
-    if response.status_code == 200:
-        data = response.json()
-        return [video["video_files"][0]["link"] for video in data["videos"]]
-    else:
-        raise Exception(f"Error al buscar en Pexels: {response.status_code}")
+
+    if response.status_code != 200:
+        raise Exception(f"Error al buscar en Pexels: {response.status_code} - {response.text}")
+
+    data = response.json()
+    if "videos" not in data or not data["videos"]:
+        raise Exception("No se encontraron videos relevantes para la consulta proporcionada.")
+
+    return [video["video_files"][0]["link"] for video in data["videos"]]